71720-00001.A
QUICK REFERENCE GUIDE
ZIP Economizer™ with
Demand Control Ventilation (DCV) Set-Up
Before Getting Started
3. Setting PPM range (only required if sensor is configurable for other
ranges).
ECON-ZIP-EM and CO2 sensor can be added during or after initial set up.
1. A CO2 sensor is needed with the following characteristics:
a. Output that is 0-10 VDC
Type of
Output
Ventilation Rate
(cfm/Person)
Analog
Output
CO2 Control
Range (ppm)
Any
0-10V
0-2000
b. Range of 0-2000ppm
2. Attach the Energy Module ECON-ZIP-EM to the ZIP Economizer
ECON-ZIP-BASE.
4. Power RTU and enter Settings Menu.
Note: When the CO2 sensor is powered and 0-10 VDC is available at CO2+
and CO2, the ZIP Economizer will recognize the CO2 presence and the
prompt to set up CO2 settings.
5. Setting DCV settings.
a. With single speed indoor fan, only 2 DCV settings are required.
i. DCV Min Pos – This is the minimum occupied or zero occupancy
ventilation rate expressed in damper percent open (Title 24 2013
section 120.1(b)2; ASHRAE 62.1 Section 6.2.7).
06/14 - Subject to change. © Belimo Aircontrols (USA), Inc.
ii. CO2 PPM Set Pnt – This is the CO2 concentration that is desired in the
space (Title 24 2013 section 120.1(c)4. prescribed as 600ppm plus
outdoor air CO2 concentration assumed to be 400ppm = a set point of
1000ppm).
Wiring CO 2 Sensor to ZIP Economizer
Operation
1. Wire CO2 sensor 0-10 VDC output to ECON-ZIP-EM CO2 sensor input.
The ZIP Economizer logic will control the outside air damper position based on
space CO2 dilution needs. If the CO2 value is low, the damper shall remain at DCV
Min Pos when not in free cooling. When the CO2 concentration rises above the
CO2 PPM Set Pnt (as the space becomes more populated), then the damper will
start to modulate towards Vent Min Pos to maintain level at CO2 PPM set Pnt.
When the CO2 concentration drops in the space (the space population decreases)
the damper will start to modulate back towards DCV Min Pos.
WARNING Live Electrical Components!
Example CO2 Sensor Diagram
2. Wire CO2 sensor power.
Note: If RTU transformer VA is sufficient R/C terminals may be used on
ZIP Economizer.
Example CO2 Sensor Diagram
During installation, testing, servicing and troubleshooting of this
product, it may be necessary to work with live electrical components. Have a
qualified licensed electrician or other individual who has been properly trained
in handling live electrical components perform these tasks. Failure to follow all
electrical safety precautions when exposed to live electrical components could
result in death or serious injury.